Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Summary of Components of AOCI

Accumulated other comprehensive income (loss) includes the cumulative gains and losses of derivative instruments that qualify as cash flow hedges. The following table provides a rollforward of accumulated other comprehensive income (loss) for the years ended December 31, 2016 and 2015 (in millions):

	2016			2015
Accumulated other comprehensive income (loss) as of January 1,	$	(4.2	)	$	(2.2	)
Other comprehensive income (loss)		1.9			(3.2	)
Income tax benefit (expense)		(0.7	)		1.2
Other comprehensive income (loss), net of tax		1.2			(2.0	)
Accumulated other comprehensive income (loss) as of December 31,	$	(3.0	)	$	(4.2	)